[gnome-builder] flatpak: add appstream and dependencies

[Christian Hergert <chergert src gnome org>]

commit 2ad37c6e66469d10390d64385431dbb66cff2ec8
Author: Günther Wagner <info gunibert de>
Date:   Sun Feb 20 21:39:33 2022 +0100

    flatpak: add appstream and dependencies
    
    As the flatpak module has new requirements we need now appstream and dependencies till its available 
(hopefully) in the SDK.

 build-aux/flatpak/org.gnome.Builder.json | 60 ++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
---
diff --git a/build-aux/flatpak/org.gnome.Builder.json b/build-aux/flatpak/org.gnome.Builder.json
index 06d687005..fc2143d59 100644
--- a/build-aux/flatpak/org.gnome.Builder.json
+++ b/build-aux/flatpak/org.gnome.Builder.json
@@ -444,6 +444,66 @@
                 }
             ]
         },
+        {
+            "name" : "libyaml",
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/yaml/libyaml.git";,
+                    "branch" : "master"
+                }
+            ]
+        },
+        {
+            "name" : "libxmlb",
+            "config-opts" : [
+                "--libdir=/app/lib",
+                "--buildtype=debugoptimized",
+                "-Dgtkdoc=false",
+                "-Dintrospection=false",
+                "-Dtests=false",
+                "-Dcli=false"
+            ],
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/hughsie/libxmlb.git";,
+                    "branch" : "main"
+                }
+            ]
+        },
+        {
+            "name" : "libstemmer",
+            "buildsystem" : "cmake-ninja",
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/zvelo/libstemmer";,
+                    "branch" : "master"
+                }
+            ]
+        },
+        {
+            "name" : "appstream",
+            "config-opts" : [
+                "--libdir=/app/lib",
+                "--buildtype=debugoptimized",
+                "-Dgir=false",
+                "-Dapidocs=false",
+                "-Dinstall-docs=false"
+            ],
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/ximion/appstream.git";,
+                    "branch" : "master"
+                }
+            ]
+        },
         {
             "name" : "flatpak",
             "config-opts" : [